Gradient flow running coupling in SU(2) with $N_f = 6$ flavors

Leino, Viljami; Rantalaiho, Teemu; Rummukainen, Kari; Suorsa, Joni; Tuominen, Kimmo; Tähtinen, Sara

doi:10.22323/1.256.0218

Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Physics Beyond the Standard Model

Gradient flow running coupling in SU(2) with

$N_f = 6$ flavors

V. Leino*, T. Rantalaiho, K. Rummukainen, J. Suorsa, K. Tuominen and S. Tähtinen

*: corresponding author

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Pre-published on: December 27, 2016

Published on: March 24, 2017

Abstract

We present preliminary results of the running of the coupling in SU(2) gauge theory with 6 mass- less fundamental representation fermion ﬂavors. We measure the coupling using the gradient ﬂow method with Schrödinger functional boundary conditions. The results are consistent with perturbation theory in the weak coupling and we see an indication of infrared ﬁxed point at strong coupling.

DOI: https://doi.org/10.22323/1.256.0218

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